Description
In Apache Commons Beanutils 1.9.2, a special BeanIntrospector class was added which allows suppressing the ability for an attacker to access the classloader via the class property available on all Java objects. We, however were not using this by default characteristic of the PropertyUtilsBean.
Remediation
References
https://lists.debian.org/debian-lts-announce/2019/08/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00007.html
https://access.redhat.com/errata/RHSA-2019:4317
https://access.redhat.com/errata/RHSA-2020:0057
https://www.oracle.com/security-alerts/cpujan2020.html
https://access.redhat.com/errata/RHSA-2020:0194
https://access.redhat.com/errata/RHSA-2020:0811
https://access.redhat.com/errata/RHSA-2020:0804
https://access.redhat.com/errata/RHSA-2020:0805
https://access.redhat.com/errata/RHSA-2020:0806
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujul2022.html
http://mail-archives.apache.org/mod_mbox/www-announce/201908.mbox/%3cC628798F-315D-4428-8CB1-4ED1ECC958E4%40apache.org%3e
https://lists.apache.org/thread.html/3d1ed1a1596c08c4d5fea97b36c651ce167b773f1afc75251ce7a125%40%3Ccommits.tinkerpop.apache.org%3E
https://lists.apache.org/thread.html/956995acee0d8bc046f1df0a55b7fbeb65dd2f82864e5de1078bacb0%40%3Cissues.commons.apache.org%3E
https://lists.apache.org/thread.html/1f78f1e32cc5614ec0c5b822ba4bd7fc8e8b5c46c8e038b6bd609cb5%40%3Cissues.commons.apache.org%3E
https://lists.apache.org/thread.html/02094ad226dbc17a2368beaf27e61d8b1432f5baf77d0ca995bb78bc%40%3Cissues.commons.apache.org%3E
https://lists.apache.org/thread.html/d6ca9439c53374b597f33b7ec180001625597db48ea30356af01145f%40%3Cdev.shiro.apache.org%3E
https://lists.apache.org/thread.html/2fd61dc89df9aeab738d2b49f48d42c76f7d53b980ba04e1d48bce48%40%3Cdev.shiro.apache.org%3E
https://lists.apache.org/thread.html/c94bc9649d5109a663b2129371dc45753fbdeacd340105548bbe93c3%40%3Cdev.shiro.apache.org%3E
https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E
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https://lists.apache.org/thread.html/5261066cd7adee081ee05c8bf0e96cf0b2eeaced391e19117ae4daa6%40%3Cdev.shiro.apache.org%3E
https://lists.apache.org/thread.html/a684107d3a78e431cf0fbb90629e8559a36ff8fe94c3a76e620b39fa%40%3Cdev.shiro.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4APPGLBWMFAS4WHNLR4LIJ65DJGPV7TF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIUYSL2RSIWZVNSUIXJTIFPIPIF6OAIO/
https://lists.apache.org/thread.html/r967953a14e05016bc4bcae9ef3dd92e770181158b4246976ed8295c9%40%3Cdev.brooklyn.apache.org%3E
https://lists.apache.org/thread.html/rae81e0c8ebdf47ffaa85a01240836bfece8a990c48f55c7933162b5c%40%3Cdev.atlas.apache.org%3E
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https://lists.apache.org/thread.html/ra87ac17410a62e813cba901fdd4e9a674dd53daaf714870f28e905f1%40%3Cdev.atlas.apache.org%3E
https://lists.apache.org/thread.html/rb8dac04cb7e9cc5dedee8dabaa1c92614f590642e5ebf02a145915ba%40%3Ccommits.atlas.apache.org%3E
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https://lists.apache.org/thread.html/r43de02fd4a4f52c4bdeff8c02f09625d83cd047498009c1cdab857db%40%3Cdev.rocketmq.apache.org%3E
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